Question

5 As figuras abaixo são semelhantes. Calcule o valor de x :


me ajudem pfvr​

Answer 1

Explicação passo-a-passo:

a) $\dfrac{x}{2}=\dfrac{0,5}{1}$

$\dfrac{x}{2}=0,5$

$x=2\cdot0,5$

$\boxed{x=1~\text{cm}}$

b) $\dfrac{x}{1}=\dfrac{3}{4,5}$

$x=\dfrac{2}{3}$

$\boxed{x=0,666\dots~\text{cm}}$

c) $\dfrac{x}{3}=\dfrac{0,5}{2}$

$\dfrac{x}{3}=0,25$

$x=3\cdot0,25$

$\boxed{x=0,75~\text{cm}}$